Table of Contents

Hypergrid Teleporting

Relevant Mantis/JIRA Issues

Test Hops

You should be able to hop between any of these grid and region destinations in any order and use the return hop that the viewer places in local chat at any time. This should include the case for when you are on your home grid and try to use the chat embedded hop:// link left for a region on that home grid.

Note that for test purposes, a region with the same name on several grids is included as a test that no confusion occurs - in this case "OpenVCE" which is a region on both OSGrid and Openvue.

Testing in Firestorm 6.4.12 OS (62792)
  1. 15-Nov-2020: Firestorm 6.4.12 OS (62792) and later includes an important fix to properly put the current grid gatekeeper "GridURL" into the hop addreses shown in the address bar and for Teleport back links put into nearby chat. So much more works.
  2. 15-Nov-2020: See http://blog.inf.ed.ac.uk/atate/2020/11/15/grid-hopping/

Testing in Firestorm 6.4.11 OS (62417)
  1. 30-Oct-2020: After install Firestorm is shown as a registered handler for the hop:// protocol in Windows 10. But the latest Firestorm of any kind (including the SL only version) is registered. This could be improved by only registering the OpenSim version for hop://
  2. 30-Oct-2020: Tests below are done after Firestorm for OpenSim is the latest installed viewer to avoid the above problem. In this case the hop:// when clicked does correctly launch the viewer or get communicated to the running viewer.
  3. 30-Oct-2020: hop:// addresses show in top address bar for home grid.
  4. 30-Oct-2020: When on a foreign grid the hop:// shown in the top address bar wrongly shows the original login (home) grid loginuri.
  5. 30-Oct-2020: When teleporting between grids a hop:// link is put into local chat. This can be used to successfully return to the location prior to the teleport.
  6. 30-Oct-2020: However, the hop:// link always shows the original login (home) grid rather than the grid you are actually on, so fails to work for teleports to the last location unless that was the home grid.
  7. 30-Oct-2020: hop:// link put into local chat now allows teleport between locations on the same grid.
  8. 30-Oct-2020: The Map "Copy SLUrl" (which would be better labelled as "Copy Location") when on a foreign grid shows a hop link which always includes the original login grid.
  9. 30-Oct-2020: OSGrid now allows the use of hop://login.osgrid.org:80 hop://login.osgrid.org or hop://hg.osgrid.org:80 (probably due to OpenSim allowing alternative server names), but a second OpenSim grid entry is added in Firestorm, and BOTH entries show as for login.osgrid.org.

Testing in Firestorm 4.7.3 OS (47323) Releasex64
  1. 14-Aug-2015: Testing preview 47308 gives results identical to 4.7.1
  2. 14-Aug-2015: No changes to hop:// handling in 4.7.3

Testing in Firestorm 4.7.1 OS (45302) Previewx64
  1. 21-Apr-2015: After install Firestorm is shown as a registered handler for the hop:// protocol.
  2. 21-Apr-2015: hop:// addresses show in top address bar for home grid.
  3. 21-Apr-2015: When on a foreign grid the hop:// shown in the top address bar wrongly shows the original login (home) grid loginuri.
  4. 21-Apr-2015: When teleporting between grids a hop:// link is put into local chat. This can be used to successfully return to the location prior to the teleport.
  5. 21-Apr-2015: However, the hop:// link always shows the original login (home) grid rather than the grid you are actually on, so fails to work for teleports to the last location unless that was the home grid.
  6. 21-Apr-2015: The hop:// link put into local chat is also not usable if you teleport between locations on the same grid. The link if clicked states "No regions found with that name." and if you click on the popup place profile teleport button it states "The region you tried to teleport to does't exist anymore".
  7. 21-Apr-2015: As in previous testing, for OSGrid you must use the login uri in a hop://login.osgrid.org:80 link, versus the usual OSGrid Hypergrid link of hop://hg.osgrid.org:80

Testing in Firestorm 4.6.5 OS (40833)

  1. 14-May-2014: hop://grid:port/region, hop://grid.port/region/, hop://grid:port/region/x/y/z or hop://grid:port/region/x/y/z/ all work when given in the address bar.
  2. 14-May-2014: A hop:// teleport WITHIN one OpenSim grid gives a return location including the grid URL. This cannot be used to return to the original location. A message "Grid: No regions found with that name." is given instead.
  3. 14-May-2014: The grid part of the hop:// links put into nearby chat for the location your avatar teleported from always contain the original login grid, rather than changing to reflect the actual grid you are on.
  4. 14-May-2014: hop://grid:port/region or hop://grid:port/region/ on its own is not recognised as a hop:// link in chat. The X/Y/Z or X/Y/Z/ has to be given.

Testing in Firestorm 4.6.1 OS (40478)

  1. 12-Mar-2014: After install of 4.6.1, use of a hop:// external link shows no program is registered as the hop:// handler. FirestormOS can though be manually selected as the default program then.
  2. 12-Mar-2014: hop://grid:port/region, hop://grid.port/region/ or hop://grid:port/region/x/y/z all seem to work when given in the address bar.
  3. 12-Mar-2014: A hop:// teleport WITHIN one OpenSim grid gives a return location including the grid URL. This cannot be used to return to the original location. A message "Grid: No regions found with that name." is given instead.
  4. 12-Mar-2014: The grid part of the hop:// links put into nearby chat for the location your avatar teleported from always contain the original login grid, rather than changing to reflect the actual grid you are on.
  5. 12-Mar-2014: hop://grid:port/region or hop://grid:port/region/ on its own is not recognised as a hop:// link in chat. The X/Y/Z/ has to be given. Otherwise hop:// is chopped off the front and rest is converted to an http:// clickable link.

Testing in Firestorm 4.5.2 OS Nightly (39517)
  1. Testing Underway as at 22-Nov-2013.
  2. Launch of program via an external hop:// link launches the program (after initial selection of it as the preferred program), selects the grid involved and puts the region/X/Y/Z in the initial location box.
  3. The :80 port in an OSGrid hop://does not match the Firestorm OpenSim grids entry for OSGrid which does not have port :80 appended. If :80 is in the external HG link then a message "Your start location did not specify a valid grid." is given.
  4. A :80 in the hop:// DOES work if used internally as a link in chat.
  5. If hg.osgrid.org is used it adds a second entry with same grid name of OSGrid to the Firestorm OpenSim grid list (default being login.osgrid.org).
  6. hop:// to a second grid worked fine in chat. (Openvue -> OSGrid)
  7. hop:// in address bar does not seem to work in this version. It brings up the search window.
  8. hop:// to SAME grid still fails to remove the grid name to allow it to work.
  9. After returning home from a foreign grid to original grid (OSGrid to Openvue grid), the hop:// link added to chat puts in the HOME grid rather than than the foreign grid hop://virtual.aiai.ed.ac.uk:8002/Sandbox%20Plaza/128/128/22 when it should have put in hop://login.osgrid.org:80/Sandbox%20Plaza/128/128/22
  10. When inside Firestorm OSGrid hops:// from hop://login.osgrid.org/region/X/Y/Z/, hop://login.orgrid.org:80/region/X/Y/Z/, hop://hg.osgrid.org/region/X/Y/Z/ and hop://hg.osgrid.org:80/region/X/Y/Z/ all work.

Testing in Firestorm 4.5.1 OS Beta (38838)

  1. 31-Oct-2013: Use of a hop:// external link when viewer is already running or not running brings up an empty dialog box that has an "OK" button. if this is pressed, the Firestorm 4.5.1 OS Beta viewer crashes.
  2. 31-Oct-2013: A teleport WITHIN one OpenSim grid gives a return location including the grid URL. This cannot be used to return to the original location. A message "Grid: No regions found with that name." is given instead.
  3. hop://grid:port/region or hop://grid:port/region/ on its own is not rtecognised as a hop:// link in chat. The X/Y/Z/ has to be given.

Testing in Firestorm 4.4.1 OS

  1. 26-Jun-2013: The above hop:// URLs will work to launch the viewer and set the initial startup region correctly.
  2. 26-Jun-2013: If you are logged in already paste the above hop:// URL for a different destination grid into the location bar at the top of the viewer. Trying to use a hop:// to the same grid will fail in 4.4.1.

Issues in Firestorm 4.4.1 OS

  1. 26-Jun-2013: In version Firestorm 4.4.1 OS hop:// appears not to work between grids now - in 4.4.0 OS it did. Instead the lookup on the region name is done on the local grid only. If the region exists that is selected. Otherwise a "Null" region at (0,0) is found for example on OSGrid. Jumping to that from within 4095 range crashes Firestorm 4.4.1 and gives the error message "ERROR: newview/llsurface.cpp(1347): LLSurface::getPatch: Asking for patch out of bounds".
  2. 26-Jun-2013: In version Firestorm 4.4.1 OS the hop:// works on the local grid also. On 4.4.0 this gave an error on the LOCAL grid return hop:// link.
  3. 26-Jun-2013: In version Firestorm 4.4.1 OS the hop:// appears to translate properly to the X/Y/Z location given when the viewer is launched from the hop:// link. But if that same link is used when the avatar is logged in, the location is set to 128/128 on the destination region even where "anywhere" teleport routing is allowed.
  4. 26-Jun-2013: hop:// links used when an avatar is logged into the viewer bring up a teleport window, but the details never resolve. the teleport button and map buttons though are active. Clicking Map does bring up the correct region - but see other issues for it ignoring the grid and X/Y/Z position in this.
  5. 26-Jun-2013: A means to handle https:// secure Hypergrid grids needs to be added. At present hop:// will always convert to http:// as the protocol. Use of hops:// has been suggested.

x-grid-info:// scheme (Hypergrid)

 Cinder Roxley has suggested that x-grid-info:// replace x-grid-location-info:// to allow for functionality beyond just teleporting and location changing.

x-grid-location-info:// scheme (Legacy Hypergrid)

 Cinder Roxley is developing a multi-grid teleport addressing scheme that works in a similar fashion to hop:// in that it can be used to launch or communicate with a running viewer and teleport to a specific grid, region and location, as well as run certain app features. It is being implemented initially in the Alchemy Viewer. More details of the protocol are available at

Partial x-grid-location-info URLs...

Special Test x-grid-location-info URLs...

Issues in Alchemy 3.8.2

  1. In version Alchemy 3.8.2 (36473) (x64) clicking a x-grid-location-info link correctly launches the Alchemy Viewer if its selected as the scheme handler, and correctly selects the grid, region and x/y/z location is specified.
  2. In version Alchemy 3.8.2 (36473) (x64) clicking a x-grid-location-info link for a grid that is not already set in the grid list in Alchemy does not add the grid to the grid manager, or ask if you want it to be added as a confirmation, which would be a nice feature. If you are already running Alchemy it reports "No regions found with that name".
  3. In version Alchemy 3.8.2 (36473) (x64) a mistakenly written link such as x-grid-location-info:hots:port/region/regionname (missing //) launches a second instance of the viewer rather than trying to use a currently launched version and leave the grid and location set to whetever it last was at.
  4. In version Alchemy 3.8.2 (36473) (x64) trying to jump to a location with a negative Z value fails, it launches another copy of the viewer if it is already running, but also does not set the grid correcrtly, it stays at the last used grid, and does not set the location, it stays blank. -ve Z is allowed in OpenSim. Alchemy does allow movement below Z = 0m.
  5. In version Alchemy 3.8.2 (36473) (x64) trtyig to jump to a location with a negative x or y fails, it launches another copy of the viewer if it is already running, but also does not set the grid correcrtly, it stays at the last used grid, and does not set the location, it stays blank. Negative X or Y should probably be changed to enforce X = 0 and/or Y = 0.
  6. In version Alchemy 3.8.2 (36473) (x64) a partially specified x-grid-location-info with "/region" on the end sets the location to 0/0/0/0. This will allow a login at the grid's "Fallback" region so is okay.
  7. In version Alchemy 3.8.2 (36473) (x64) if no X/Y/Z is specified then 128/128/0 is used. That is probably not a bad default.
  8. In version Alchemy 3.8.2 (36473) (x64) using the Previous, Next or Drop-down history choices to try to teleport to a region on the SAME grid that you are already on fails. In this case currenmtly you muist edit the address bar to remove all but the regionname/X/Y/Z part.
  9. In version Alchemy 3.8.2 (36473) (x64) when already in Alchemy and an externally provided x-grid-location-info:// link for a location on the CURRENT grid is clicked, a "Place Profile" popup tool does appear and if its a valid location the teleport button will take you to the selected location. But the Place Profile box says "Loading..." and never resolves the information for the given region.
  10. In version Alchemy 3.8.2 (36473) (x64) when already in Alchemy and an externally provided x-grid-location-info:// link for a location on a DIFFERENT grid is clicked, a "Place Profile" popup tool does appear but a "No regions found with that name." popup also shows. If the foreign grid region name happens to be identical to a region name on the current grid, the system thinks you mena the region with te shared name on teh CURRENT grid. The Place Profile box says "Loading..." anyway and never resolves the information.
  11. In version Alchemy 3.8.2 (36473) (x64) an extra trailing "/" can be on any URL which is good.